[INFO] updating cached repository megarocks/guessing_game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/megarocks/guessing_game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/megarocks/guessing_game" "work/ex/beta-1.38-1/sources/1.37.0/gh/megarocks/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/megarocks/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/megarocks/guessing_game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/megarocks/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/megarocks/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e413dd1ac424c295879e44c927ac3f859593635a
[INFO] sha for GitHub repo megarocks/guessing_game: e413dd1ac424c295879e44c927ac3f859593635a
[INFO] validating manifest of megarocks/guessing_game on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of megarocks/guessing_game on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing megarocks/guessing_game
[INFO] finished frobbing megarocks/guessing_game
[INFO] frobbed toml for megarocks/guessing_game written to work/ex/beta-1.38-1/sources/1.37.0/gh/megarocks/guessing_game/Cargo.toml
[INFO] started frobbing megarocks/guessing_game
[INFO] finished frobbing megarocks/guessing_game
[INFO] frobbed toml for megarocks/guessing_game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/megarocks/guessing_game/Cargo.toml
[INFO] crate megarocks/guessing_game already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing megarocks/guessing_game against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/megarocks/guessing_game:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 4214239b672b41a21a165c32ac5fe95ffc2166d3297506656de98255651e41d3
[INFO] running `"docker" "start" "-a" "4214239b672b41a21a165c32ac5fe95ffc2166d3297506656de98255651e41d3"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "4214239b672b41a21a165c32ac5fe95ffc2166d3297506656de98255651e41d3"`
[INFO] running `"docker" "rm" "-f" "4214239b672b41a21a165c32ac5fe95ffc2166d3297506656de98255651e41d3"`
[INFO] [stdout] 4214239b672b41a21a165c32ac5fe95ffc2166d3297506656de98255651e41d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/megarocks/guessing_game:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] acc7a0a26fb88f1c4113dc9c3cea1810e6098c589e608ef84a1aa4b5bb0898b4
[INFO] running `"docker" "start" "-a" "acc7a0a26fb88f1c4113dc9c3cea1810e6098c589e608ef84a1aa4b5bb0898b4"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "acc7a0a26fb88f1c4113dc9c3cea1810e6098c589e608ef84a1aa4b5bb0898b4"`
[INFO] running `"docker" "rm" "-f" "acc7a0a26fb88f1c4113dc9c3cea1810e6098c589e608ef84a1aa4b5bb0898b4"`
[INFO] [stdout] acc7a0a26fb88f1c4113dc9c3cea1810e6098c589e608ef84a1aa4b5bb0898b4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/megarocks/guessing_game:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 0460a8acbcb798162b1c82ab56d042d132d9b1b6977399ce91ce128de6b0a57a
[INFO] running `"docker" "start" "-a" "0460a8acbcb798162b1c82ab56d042d132d9b1b6977399ce91ce128de6b0a57a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-fcd1c0adb0d3234b
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0460a8acbcb798162b1c82ab56d042d132d9b1b6977399ce91ce128de6b0a57a"`
[INFO] running `"docker" "rm" "-f" "0460a8acbcb798162b1c82ab56d042d132d9b1b6977399ce91ce128de6b0a57a"`
[INFO] [stdout] 0460a8acbcb798162b1c82ab56d042d132d9b1b6977399ce91ce128de6b0a57a